Lamp structure



Nov. 28, 1939. J. WERTZHEISER LAMP STRUCTURE Filed April 5, 1938 2 Shets-Sheet l 49W MZW Nov. 28, 1939. J. WERTZHEISER LAMP STRUCTURE Filed April 5, 1938 2 Sheets-Sheet 2 r r a H z a 2 n a uir mmm 2 MM INVENTOR Jose A Mrf le/ker ATTORNEYL/A Patented Nov. 28, 1939 warren 5mm;

LAMP STRUCTURE I Joseph Wertzheiser, New YOrkQN. 31., assignorto Leviton Manufacturing Company, Brooklyn, N. Y., a corporation of New York Application April 5, 1938 Serial No. 200,117

I 4 Claims." (or. 24081) My present invention relates to an improved electric lamp structure and will be best understood from the following description of an illustrative embodiment thereof.

In the accompanying drawings:

Fig. 1 is a side View of an illustrative embodiment in partial section, the final assembly being shown partially in dotted lines.

Fig. 2 is a side view and Fig.- 3 an end view of the lamp husk of Fig. 1 Fig. 2 being sectioned along line 2-2 .of Fig. 3.

Fig. 4 is a side view and Fig. 5 an end view of the lamp socket shownin Fig. 1.

Fig. 6 is a side view in partial section along the line 66 of Fig. '7 showing the relative positions of the husk and socket as they are being assembled. I

Fig. 7 is an end view of Fig. 6. Fig. 8 is a View similar to Fig. 6, partially sec tioned along the line 88 of Fig. 9 showing the relative positions of the husk and socket in the completed assembly.

Fig. 9 is an end View of Fig. 8.

Fig. 10 is a fragmentary section taken along the line Ill-4!) of Fig. 9. I

Fig. 11 is a side View and Fig. 12 an end View of a modified form. I

In the illustrative embodiment, there is a husk II inside of which a lamp socket I2 is placed. The husk I I has at its lower end a relatively narrow inwardly extending flange I3, the opening thus form'ed'at the bottom of the husk being somewhat sm'aller than the main diameter of the body portion of the lamp socket I2. At the bottom of said lamp socket l2, there isa base portion It of a diameter small enough to pass through the opening in the bottom of the husk II, this base portion I4 forming a shoulder I5 where said base portion and the body of the lamp socket I2 join. The shoulder I5 will bear against the in"- side surface of the flange I3 when the socket I2 is placed inside the husk II.

Carried on the bottom of the base portion I4 are the electric wiring terminals I6 and I! of the lamp socket I2. Thus, when the lamp socket I2 is placed inside the husk II, said terminals are exposed externally of saidhusk. This permits the attachment of the line wires I8 and I9 to said terminals after the socket I2 has been placed inside the husk II, so that only a small amount of slack in the line wires need be provided. This avoids any necessity for pulling the line wires back through the entire lamp structure, such structure, as shown in Fig. 1, usually having sufficient space inside it to accommodate the small the threaded holes in the hickey 26.

amount of slack wire required by my invention. ,It-is desirable to secure the lamp socket I2 to the husk II and for this, I have provided a plurality of vertical projectionslil spaced about and extending partway up the reduced base portion I4, leaving a space between the top of said projections and the shoulder I5 of the socket of sufficientw-idthto receive the flange I3. The flange I3 has openings 21 arranged. to permit the passage of said projections when the. socket I2 is being assembled in the husk 'I I. The lamp socket I2 may then be rotated relativeto the husk II so that the projections 2d are at points intermediate the flange openings II. Thus socket I2 will be held insidethe husk I I by the engagement of the projections 20 onone side of the flange I3, and the shoulder I5 on the other side of the flange I3. I I

To look said socket and husk against relative rotationafter they are assembled, a key 22 extending through an opening 23 in the side wall of the husk II and engaging a threaded shaft of a switch mechanism located in the socket I 2 may be provided, it being understood that the key will be inserted'after, the husk and socket have been assembled. The key 22 will act as a control-handle or'knob for the socket I2 and will also prevent relative rotation of. the socket and husk when it is in place. I To cool the space proximate to the socket I2 which is enclosed by thexhusk I I when the socket .andhuskhave been assembled, the shoulder I5 has a plurality of cutout portions 24 spaced about it so as. to register with the openings 2! in the flange I3 when the socket I2 and the-husk II have been placed in their assembled relationship. Thus the passage of air is permitted through said openings to the space about said socket Where a high degree of heat is concentrated. The upper portion of the socket I2 will extend above the openings 2| to prevent the direct reflection of light through said openings.

The lamp so'cket'has screws 25 passing through it which are adapted to engage with threaded holes in a hickey or supporting bracket 26 which is carried on the end of a lamp support 21. Surrounding said hickey, there is a body portion 28 also carried by the lamp support 21.

When the socket I2 and the husk II have been assembled and the line wires I8 and I9 connected to the socket terminals I6 and H as previously described, these portions are then placed in upright position as shown by the dotted lines of Fig. 1, so that the screws 25 will engage with The upper edges of the body 28 contact the lower edges of the husk H so that the husk rests on the body portion and the exterior of said husk forms continuation of said body. When the screws 25 are screwed into the threaded holes in the hickey 26, the socket I2 is drawn downward which, in turn, carries the husk l l down with it due to their interrelation. This brings the husk II forcibly against the body 28 and rigidly clamps the husk in place forming a solid and permanent lamp structure.

Normally a translucent reflector bowl 29 carried by said husk ll surrounds a lamp bulb 30 placed in the socket [2 as is shown in dotted lines in Fig. 1. An ornamental tubing 3| and an ornamental base 32 surround the lamp support 21.

In Figs. 11 and 12, I have shown a modification of my device in which the husk II has a plurality of inwardly extending projections 33 which engage with slots 34 in the socket I2. The slots 34 have laterally elongated portions at their upper ends to permit relative rotation of the socket I2 and the husk II to secure said socket to said husk in a manner commonly referred to as a bayonet joint.

I claim:

1. A lamp structure having a hollow body portion, a socket supporting bracket within said body portion, a husk adapted to have its lower part rest on the top of said body portion to form a continuation thereof, said husk having an inwardly extending annular flange at one end to form an opening through the bottom of the husk, a lamp socket adapted to be inserted in said husk and having a reduced portion at its base to form a shoulder with the body portion of the socket, said reduced portion having a diameter adapting it to pass through the opening at the bottom of the husk, whereby the shoulder on said socket will rest on the flange of the husk when the socket is in the husk, line wire connections on the bottom of the reduced portion of the socket and external of the husk when the socket is in the husk, means for securing the socket to the husk, and means for fastening said socket to the supporting bracket adapted to draw the adjacent ends of the husk and hollow body together.

2. A lamp structure having a hollow body portion, a socket supporting bracket within said body portion, a husk adapted to have its lower part rest on the top of said body portion to form a continuation thereof, said husk having an inwardly extending annular flange at one end to form an opening through the bottom of the husk, a lamp socket adapted to be inserted in said husk and having a reduced portion at its base to form a shoulder with the body portion of the socket, said reduced portion having a diameter adapting it to pass through the opening at the bottom of the husk, whereby the shoulder on said socket will rest on the flange of the husk when the socket is in the husk, line wire connections on the bottom of the reduced portion of the socket and external of the husk when the socket is in the husk, means for securing the socket to the husk comprising a plurality of projections spaced about the reduced base portion of the socket with their upper ends spaced from said shoulder a distance greater than the thickness of the husk flange, said flange having spaced openings therein adapted to permit said projections to pass the flange when the socket is inserted in the husk, and means for fastening said socket to the supporting bracket adapted to draw the adjacent ends of the husk and hollow body together.

3. A lamp structure having a hollow body portion, a socket supporting bracket within said body portion, a husk adapted to have its lower part rest on the top of said body portion to form a continuation thereof, said husk having an inwardly extending annular flange at one end to form an opening through the bottom of the husk, a lamp socket adapted to be inserted in said husk and having a reduced portion at its base to form a shoulder with the body portion of the socket, said reduced portion having a diameter adapting it to pass through the opening at the bottom of the husk, whereby the shoulder on said socket will rest on the flange of the husk when the socket is in the husk, line wire connections on the bottom of the reduced portion of the socket and external of the husk when the socket is in the husk, means for securing the socket to the husk comprising a plurality of projections spaced about the reduced base portion of the socket with their upper ends spaced from said shoulder a distance greater than the thickness of the husk flange, said flange having spaced openings therein adapted to permit said projections to pass the flange when the socket is inserted in the husk, means to prevent relative rotation of the husk and the socket after they have been rotated to bring said projections and said flange openings out of alignment when the socket has been inserted in the husk, and means for fastening said socket tothe supporting bracket adapted todraw the adjacent ends of the husk and hollow body together.

4. In combination, a husk, a lamp socket in the husk with the base of the socket extending through an opening at the bottom of said husk,

line wire connections on the base of the socket outside the husk, means to lock the husk to the socket, said locking means comprising a relatively narrow inwardly extending flange surrounding the opening in the bottom of the husk,

a shoulder on the socket adapted to rest on said flange, a plurality of projections on the side of the socket and adjacent the base thereof having their upper ends spaced from the shoulder a distance greater than the thickness of the flange, said flange having a plurality of openings to permit the passage of said projections past the flange when the socket is inserted into the husk, the husk and socket being adapted for relative rotation when the shoulder is resting on the flange to bring said projections out of register with the flange openings and said shoulder having cutaway portions adapted to come into alignment with said flange openings when said openings are out of alignment with the projections on the socket.

- JOSEPH WERTZHEISER. 

